1. Ingham Corporation recently changed the selling price of one of its products. Data concerning sales for
comparable periods before and after the price change are presented below.
The product’s variable cost is $16.40 per unit.
According to the formula in the text, the product’s profit-maximizing price is closest to:
$35.82
$32.89
$35.23
$20.74
% change in quantity sold = (5,090 – 4,300)/4,300 = +18.37%
% change in price = ($11 – $12)/$12 = -8.11%
εd = ln(1 + % change in quantity sold)/ln(1 + % change in price)
= ln(1 + (0.1837))/ln(1 + (-0.0811)) = -1.99
Profit-maximizing markup on variable cost = -1/(1 + εd)
= -1/(1 + (-1.99)) = 1.01
Profit-maximizing price = (1 + Profit-maximizing markup on variable cost) × Variable cost per unit
= (1 + 1.01) × $16.40 = $32.96 (the exact answer without rounding error is $32.89)
2. The management of Brockington Corporation is considering introducing a new product–a compact
barbecue. At a selling price of $80 per unit, management projects sales of 70,000 units. Launching the
barbecue as a new product would require an investment of $400,000. The desired return on investment is 15%.
The target cost per barbecue is closest to:
$79.14
$92.00
$91.01
$80.00
3. Timax Corporation, a manufacturer of moderate-priced time pieces, would like to introduce a new electronic
watch. To compete effectively, the watch could not be priced at more than $50. The company requires a return